Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 85
Fig. 80. 68 ASTRONOMY. upon the obliquity of the ecliptic. … Fig. 81. Were there no obliquityof the ecliptic, therewould be no inequalityin the length of dayand night, and butslight diversity of sea-sons. The greater theobliquity of the eclip-tic, the greater wouldbe the variation in thelength of the days andnights, and the moreextreme theof the seasons.…
Astronomy
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